Shang Dong Guo Jing Advanced Materials Co.,Ltdspecializes in research, development and production and sales ofPBN(Pyrolytic Boron Nitride),PG(Pyrolytic Graphite),Sic and C/CComposite. PBN,PG and Sic are high purified materials which areproduced by CVD(chemical vapor deposition) process which isdeveloped by cooperation of famous Institute of technology. Ourmajor products are crucibles, heaters and coating on the graphite..PBN,PG and Sic products are used in semiconductor manufacturingindustry.C/C Composite are widely used in phoelectron, microelectronics solar energy andpowder sintering.